Regional Features of Invasion of Alien Macroinvertebrates into the Water Ecosystems of the Ob River Basin
L. V. YANYGINA1,2
1Institute of Water and Ecological Problems, SB RAS, 656038, Barnаul, Molodezhnаya str., 1
2Altai State University, 656099, Barnаul, Dimitrova str., 66
Keywords: скорость инвазии, макробеспозвоночные, р. Обь, чужеродные виды, рыбоводство, invasion rate, macroinvertebrates, the Ob river, alien species, fish farming
Abstract
The peculiarities of invasion of alien macroinvertebrates into the water bodies of the Ob river basin were studied. It was noted that building of hydropower plants and fishery management played the key role in the invasion of alien fauna. The main invasion corridors and the tendencies of long-term alterations in them were revealed. The common and distinctive features of the alien fauna of the Ob river basin and the invasive species of large European rivers were determined. It was shown that a considerable number of alien invertebrates were introduced into the Ob river accidentally.
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